Home / 10,515.36-15,776.64-4,676.08

Finding the Fourth Proportional to 10,515.36, 15,776.64 and 4,676.08

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Solution

The fourth proportional to 10,515.36, 15,776.64 and 4,676.08 is: 7,015.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.36 : 15,776.64 = 4,676.08 : x
  2. Step 2: Convert to fraction form
    10,515.36/15,776.64 = 4,676.08/x
  3. Step 3: Cross multiply
    10,515.36x = 15,776.64 × 4,676.08
  4. Step 4: Simplify right side
    10,515.36x = 73,772,830.77
  5. Step 5: Solve for x
    x = 73,772,830.77/10,515.36
  6. Step 6: Final answer
    x = 7,015.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.